safety catches jackshaft

例句：

1. 1. The company has implemented strictsafety protocols to prevent accidents.
   该公司已实施严格的安全协议以防止事故。
2. 2. Safety isparamount when operating heavy machinery.
   操作重型机械时，安全至关重要。
3. 3. Thesafety of the workers isour top priority.
   工人的安全是我们的首要任务。